Privilege escalation in Apple macOS
CVE-2026-17864
Inappropriate implementation in Updater in Google Chrome on Mac prior to 151.0.7922.72 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (Chromium security severity: Medium)
Vulnerability class: Privilege Escalation
EPSS: 0.001 (1.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Apple Macos
- Google Chrome — versions 151.0.7922.72
Weakness classification (CWE)
References
- chrome-cve-admin@google.com (Release Notes, Vendor Advisory)
- chrome-cve-admin@google.com (Permissions Required)
Frequently asked questions
- What is CVE-2026-17864?
- CVE-2026-17864 is a high-severity vulnerability in Apple macOS, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2026-07-30.
- How severe is CVE-2026-17864?
- High severity. CVSS v3 base score is 7.8 out of 10.